NBN EN 61834-6 : 2001

Clause
1 General
   1.1 Scope
   1.2 Normative references
   1.3 Definitions, symbols and abbreviations
   1.4 Environment and test conditions
2 Helical recordings
   2.1 Tape speed
   2.2 Record location and dimensions
3 Programme track data arrangement
   3.1 Introduction
   3.2 Labbelling convention
   3.3 Audio sector
   3.4 Video sector
   3.5 Subcode sector
4 Audio interface
5 Video interface
6 Audio signal processing
   6.1 Introduction
   6.2 Error correction code
   6.3 Randomization pattern
   6.4 Audio encoding
   6.5 Audio channel allocation
   6.6 Frame structure
   6.7 Shuffling method
   6.8 Audio auxiliary data (AAUX)
   6.9 Invalid recording
7 Video signal processing
   7.1 Introduction
   7.2 Error correction code
   7.3 Randomization pattern
   7.4 Video structure
   7.5 DCT processing
   7.6 Quantization
   7.7 Variable length coding (VLC)
   7.8 Arrangement of a compressed macro block
   7.9 Arrangement of a video segment
   7.10 Data-sync block and compressed macro block
   7.11 Video auxiliary data (VAUX)
   7.12 Invalid recording
8 Subcode signal processing
   8.1 The recording periods of TAG ID
   8.2 FR ID
   8.3 Main area and optional area
9 System data
   9.1 AAUX
   9.2 VAUX
   9.3 Subcode
   9.4 MIC
10 Data structure for digital interface
   10.1 Introduction
   10.2 Data structure
   10.3 DIF sequence
   10.4 DIF block
   10.5 Frame period
   10.6 Playback speed
Annex A (normative) Long play mode with narrow track
        pitch
        A.1 Helical recordings
        A.2 Absolute track number
Annex B (normative) Definitions of AUX positions on
        digital interface in SDL mode
        B.1 Transmitting pattern
        B.2 Data structure for digital interface
Annex ZA (normative) Normative references to
         international publications with their
         corresponding European publications

Defines the format extension, using higher compression to increase recording time and decrease running cost. The data structure of MIC is as clause 10 in IEC 61834-2.